125 citations · 437 across the 28 of their papers we have counts for
6 papers · 1 filter
Probing vibrational energy relaxation in proteins using normal modes
Hiroshi Fujisaki, Lintao Bu, John E. Straub
Vibrational energy relaxation (VER) of a selected mode in cytochrome c (hemeprotein) in vacuum is studied using two theoretical approaches: One is the equilibrium simulation approa…
Coarse-Grained Picture for Controlling Quantum Chaos
Toshiya Takami, Hiroshi Fujisaki, Takayuki Miyadera
We propose a coarse-grained picture to analyze control problems for quantum chaos systems. Using optimal control theory, we first show that almost perfect control is achieved for r…
Vibrational energy relaxation (VER) of a CD stretching mode in cytochrome c
Hiroshi Fujisaki, Lintao Bu, John E. Straub
We first review how to determine the rate of vibrational energy relaxation (VER) using perturbation theory. We then apply those theoretical results to the problem of VER of a CD st…
Entanglement induced by nonadiabatic chaos
Hiroshi Fujisaki
We investigate entanglement between electronic and nuclear degrees of freedom for a model nonadiabatic system. We find that entanglement (measured by the von Neumann entropy of the…
Coarse-Grained Picture for Controlling Complex Quantum Systems
Toshiya Takami, Hiroshi Fujisaki
We propose a coarse-grained picture to control ``complex'' quantum dynamics, i.e., multi-level-multi-level transition with a random interaction. Assuming that optimally controlled…
Quantum-"classical" correspondence in a nonadiabatic-transition system
Hiroshi Fujisaki
A nonadiabatic-transition system which exhibits ``quantum chaotic'' behavior [Phys. Rev. E {\bf 63}, 066221 (2001)] is investigated from quasi-classical aspects. Since such a syste…